Railway-switch.



F. EVANS 84 D. BUTT.

RAILWAY SWlTCH.

APPLICATION FILED SEPT-23. 1915.

1,223,945,, Patented Apr. 24, 1917.

2 SHEETS-SHEET l- (IlllilllllllT llllllllll\lIIYlllIt/illllllilllllllll)ll A TTOR/VEYS F. EVANS & D BUTT.

RAILWAY SWITCH.

APPLICATION FILED SEPT-23, 1915.

Patented Apr. 24, 1917.

2 SHEETSSHEET 2-' INVENTORJ Wan/ fa /75 04.22162 flail NTOMEYS WIT/V58ES 1E TA ES AT FBTQE.

FRANK EVANS AND DAVID DUTT, OIE RIVEBDALE, MICHIGAN, ASSIGNORS OF ONE-THIRD TO BUBTIS 0. MARKI-IAM, OF RIVERDALE, MICHIGAN.

RAILWAY-SWITCH.

Application filed September 23, 1915.

To all whom it may concern:

Be it known that we, FRANK EvANs and DAVID Dur'r, citizens of the UnitedStates, and residents of Riverdale, in the county of Gratiot and Stateof Michigan, have invented a newv and Improved Railway- Switch, of whichthe following is a full, clear, and exact description.

Our invention relates to switches and signals adapted to be actuated bya train trip.

Our invention particularly relates to a switch and signal of theindicated type so constructed and arranged that the switch bar,connected with the switch points, will be rocked by train trip and asliding axial movement will be given to the switch bar, the rockingmovement serving to actuate a semaphore while the sliding movementserves to throw the switch points, the operation being automaticallyeffected by a train coming from either direction at any rate of speed.

Other distinguishing features of the invention will appear from the morespecific description following.

Reference is to be had to the accompanying drawings forming a part ofthis specification in which similar reference characters indicatecorresponding parts in all the views.

Figure 1 is a side elevation of a railway track equipped with ourinvention, the View including a train trip;

Fig. 2 is a plan view;

Fig. 3 is a fragmentary plan view on an enlarged scale of the operatingdevices of a switch and signal;

Fig. 4 is a longitudinal vertical section on the line 4-4, Fig. 3;

Fig. 5 is a similar view on the line 5-5, Fig. 3;

Fig. 6 is a transverse vertical section; and

Fig. 7 is a detail sectional side elevation of the means forautomatically rocking the switch bar.

Specification of Letters Patent.

Patented Apr. 24, 1917.

Serial No. 52,174.

with the latter by suitable means here shown as consisting of clampcollars 11 on the switch bar 10, and plates 12, adjacent to the switchbar and suitably fastened to the switch points C. The switch bar 10, ismounted to rock and slide axially in any suitable bearings 13.

In order to automatically rock the switch bar by an approaching train,the said switch bar has suitably connected therewith, a rocker arm 14,which extends upwardly above the track and passes freely through avertical opening 15, in an elongated link 16, which rangeslongitudinally of the track. The engagement between the rocker arm 14,and the link 16, is at the approximate center of said link. If desired,the arm 14, may have a slot 14, therein, through which a pin 15 extendsto opposite side walls of the opening 15. One end of the link 16, ispivoted as at 16% to a lever 17 said lever being fulcrumed at its lowerend as at 18, on any suitable track support 19. The opposite end of thelink 16, is pivoted as at 16", to the lower end of a similar lever 17which is fulcrumed at a point between its ends as at 18, in a bracket19. Thus, as will be clear from Fig. 7, we provide means for anoverslung and an underslung connection between the link and itsrespective levers 17 17'. Thus, when the lever 17 is tripped and rockedon its fulcrum by a locomotive approaching the same from the directionshown in Fig. 1 the link 16, will be drawn toward said lever. On theother hand when the opposite lever 17 is tripped and rocked on itsfulcrum by a train mov ing inthe opposite direction, a pushing actionwill be exerted on the link. In connection with the switch bar and itsoperating levers and link, we provide means to trip said levers forclosing or opening a switch by a train running in either direction atany rate of speed.

l/Ve prefer to employ a .train trip 20, which is hung on a hanger orother support 22, on a locomotive D, there being a compression spring21, at the back of the trip 20 to cushion the shock. The hanger 22, ashere shown, is suitably suspended from a bellcrank 23, which isconnected by a rod 23", and a hand lever 28*, in the engine cab. Thearrangement is such that upon the approach of a train carrying a trip20, in either direction toward the switch, the said trip will contactwith the adjacent lever 17, 17 thereby rocking the same and moving thelink 16, longitudinally of the track, and through the connection withthe rocker arm 14, turn the switch bar 10.

In order that the turning movement of the switch bar 10, may operate asignal, a semaphore 24:, is provided, connected by any suitable meanswith the said switch bar. In the example shown, a semaphore 2 1, isconnected by a link 25 with a vertical rod 25, slidablymounted in asignal stand 26, and extending vertically through the top 26, thereof.The lower end of the rod 25, connects with the rockable switch bar 10,through the medium of a connecting rod 27, which is secured at its upperend to the rod 25, by a universal joint 28, the lower end of theconnecting rod 27-, having pivotal connection as by a wrist pin 29, withthe disk 30, on the said switch bar. It will thus be seen that a turningmovement of the switch bar will serve to raise or lower the semaphore24.

Simultaneously with the turning movement of the switch bar 10, the sameis caused to slide axially, whereby to throw the switch points C. Toeffect the sliding movement, the disk 30, is constituted a worm elementas hereinafter explained and a fixed coacting worm element 31, isprovided to engage the same. The element 31, is in the form of an archedbar, the ends of which are suitably fastened as at 82, to the track,with thesaid element 31, ranging obliquely across the periphery of thedisk 30, said disk being provided with an oblique groove 33, thus givingsaid disk the character of a worm element, to receive the bar 81, asindicated in Fig. 5.

By the desired relation of the disk 30, and the coacting element 31, itwill be seen that upon a turning of the disk by the rocking of theswitch bar 10, the engaging groove 83, therein and bar 31, will causethe said disk 30, andwith-it the switch bar 10, to be slid axially inthe bearings 13, thereby throwing the switch" points 0 in unison withthe operation of the semaphore 24-. Thus the-simultaneoussli'ding andturning movements are imparted to'the switch bar 10, by a-simple andpositively acting construction.

In orderto lock the switch and signal, we provide a latch '34-,which ispivoted to the track-as--at 35, to swingin a vertical plane. On theunderside of the latch 34, between the en'ds 'thereof, a catch tooth 36,is formed which is adapted to engage in a notch '37,

lock the switch.

In order to turn the rockable switch bar 10, manually when desired, ahand-wheel 40, or equivalent lever element, is provided on one end ofthe said switch bar.

The form and size of the opening 15, in the link 16, are such as topermitthe arm 14, to move transversely relatively to said link16, inresponse to the described sliding movement of the switch bar 10 by theaction of the worm elements 30, 31.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent:

1. In an apparatus of the class described a transverse switch'bar,mounted to turn and to slide axially and provided with a rocker armthereon, a longitudinally disposed link, therebeing a connectionbetweensaid link and said rocker arm to rock the armby a longitudinal movementof the link and arranged to permit a transverse movement of the rockerarm with the switch bar relatively to the link, means connected withsaidlink and adapted to be engaged by a train trip to move thelink-longitudinally, and means to connect the switch bar with switchpoints to throw the latter by a longitudinal movement of the switch bar.

2. An apparatus of the classdescribed, in-

cluding a transverse switch bar mounted to turn and to slide axially andprovided with a rocker arm thereon, a longitudinally ranging link,having between the ends thereof, an opening receiving the said arm onthe switch bar, said opening being of a width to permit a movement ofthe said rocker arm transversely of the opening in response to a slidingmovement of the switch bar, levers pivotally connected with the oppositeends of the said link and adapted to be engaged by a train trip, andmeans to connect the switch bar with switch points.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

FRANK EVANS. DAVID DUTT.

Witnesses:

ARTHUR W. 'WYETH, ADAM BRITTEN.

Copies of this pa-tentmay be obtained for five cents each, by addressingthe Commissioner ofPate-nts,

I 'Washington, D. G.

